A liquid silicone automatic mixing and injection production line

Abstract

The present invention relates to an automatic mixing and filling production line for liquid silicone, comprising a mixing system, a turntable system, a filling system, and a conveying system. The mixing system comprises a work platform, a hopper is mounted on the work platform, the lower end of the hopper is connected to a liquid delivery pipeline via a liquid discharge joint, the liquid delivery pipeline is connected to a feed pipe of a stirring mechanism via a peristaltic pump, a weighing mechanism is provided below the stirring mechanism, and a mixing hopper translation mechanism and a mixing hopper shift mechanism are also mounted on the work platform. A material blocking cylinder is mounted on the work platform, and a material blocking plate is fixed to the piston rod of the material blocking cylinder. The turntable system comprises a rotating platform, a turntable motor and a cam divider mounted at the lower end of the rotating platform, and a support ring is provided on the rotating platform. The filling system comprises a mounting frame, a hopper transfer mechanism and a glue injection mechanism are mounted on the mounting frame, and the conveying system is located below the glue injection system. The present invention has the advantages of high automation, high safety, and convenient operation.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical equipment, in particular to an automatic mixing and injection production line for liquid silica gel. Background Art

[0002] Liquid silicone, also known as liquid silicone, has advantages such as good transparency, resilience, thermal stability, and tear resistance, and has been widely used in various fields of industrial production. Liquid silicone used in certain mold production is primarily composed of a mixture of two liquid materials. Before synthesis, the two liquid materials have poor fluidity, requiring forced agitation during the mixing process to achieve uniform mixing. After mixing, the liquid silicone has better fluidity and needs to be stored in a dedicated container.

[0003] Currently, the production of this type of liquid silicone primarily relies on manual, semi-automated methods. Due to its strong odor and strong adhesiveness, it's difficult to clean. Long-term exposure to it can be detrimental to workers' physical and mental health. Furthermore, the production process is labor-intensive and inefficient, resulting in low efficiency. Therefore, there's an urgent need to develop an automated production method and equipment suitable for this type of liquid silicone to replace the current low-quality and inefficient production methods. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by this patent application is how to provide a liquid silicone automatic mixing and injection production line with a high degree of automation, high safety and convenient operation.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A liquid silicone automatic mixing and injection production line, including a mixing system, a turntable system, an injection system, a conveying system and a feeding platform;

[0007] The mixing system includes a working platform, on which two hoppers for containing liquid materials are installed, the lower ends of the hoppers are connected to liquid delivery pipelines via liquid discharge joints, the liquid delivery pipelines are connected to the feed pipe of the stirring mechanism via a peristaltic pump fixed on the working platform, the stirring mechanism is fixed on the working platform, a weighing mechanism is provided below the stirring mechanism, and a mixing hopper translation mechanism and a mixing hopper shift mechanism are also installed on the working platform; a material blocking cylinder is installed on the working platform, and a material blocking plate for blocking the feed pipe is fixed to the piston rod of the material blocking cylinder;

[0008] The turntable system includes a rotating platform, a turntable motor and a cam divider installed at the lower end of the rotating platform, and a support ring for supporting the mixing hopper is provided on the rotating platform;

[0009] The injection system includes a mounting platform, on which a hopper transfer mechanism and a glue injection mechanism are mounted, and the conveying system is located below the glue injection system;

[0010] The feeding platform is arranged on one side of the working platform.

[0011] Preferably, the stirring mechanism includes a stirring motor fixedly mounted on the working platform and a mixing hopper cover fixedly mounted at the lower end of the working platform. The output shaft of the stirring motor is connected to a stirring paddle via a reducer, and the stirring paddle passes through the mixing hopper cover and is arranged downward.

[0012] Preferably, the mixing hopper translation mechanism includes a translation cylinder and a linear slide fixedly mounted on the lower end of the working platform, a slider is slidably fitted on the linear slide, a translation base plate is fixed on the slider, the piston rod of the translation cylinder is fixedly connected to the translation base plate, two lifting cylinders are fixed on the translation base plate, the piston rods of the lifting cylinders are arranged upward and are respectively fixedly mounted with mixing hopper support blocks.

[0013] Preferably, the mixing hopper shifting mechanism includes a shifting cylinder fixedly mounted on a working platform, the shifting cylinder is used to drive the shifting platform to move, a first grabbing cylinder is fixed on the shifting platform, the piston rod of the first grabbing cylinder passes downward through the moving platform and is fixed with a first connecting plate, and two first grabbing claws are fixed downward on the first connecting plate.

[0014] Preferably, the weighing mechanism includes a supporting platform, three first weighing sensors are installed on the supporting platform, a first lower positioning seat is installed on the first weighing sensor, a first positioning steel ball is installed on the first lower positioning seat, handles are fixed on both sides of the mixing hopper, an upper positioning rod is also fixed on the mixing hopper, a positioning block is fixed at the lower end of the upper positioning rod, and the positioning block has a positioning groove matching the first positioning steel ball; two first lifting cylinders are fixed on the supporting platform, the piston rod of the first lifting cylinder is set upward and fixed to the first mixing hopper support, and a discharge valve is installed at the lower end of the mixing hopper.

[0015] Preferably, the hopper transfer mechanism includes a transfer cylinder fixedly mounted on a mounting frame, the transfer cylinder is used to drive the transfer platform to move, a second grabbing cylinder is fixed on the transfer platform, the piston rod of the second grabbing cylinder passes downward through the transfer platform and is fixed with a second connecting plate, and the second connecting plate is fixed with two second grabbing claws downward.

[0016] Preferably, the glue injection mechanism includes a glue injection base plate, three second weighing sensors are fixedly mounted on the glue injection base plate, second positioning steel balls are fixed on the second weighing sensors through a lower positioning rod, and the positioning grooves on the glue mixing bucket match the second positioning steel balls; two second lifting cylinders are fixed on the support platform, and the piston rods of the second lifting cylinders are set upward and fixed with a second glue mixing bucket support.

[0017] Preferably, the conveying system includes a conveying line body, a support leg is fixed to the lower end of the conveying line body, a conveying motor is installed at the lower end of the conveying line body, the conveying line body includes a belt, a partition is provided on the belt, and ribs are installed on both sides of the belt, and the belt is used to place glue bottles.

[0018] Preferably, a hopper cover is provided at the upper end of the hopper, a sealing ring groove is provided on the hopper, a sealing ring is placed in the sealing ring groove, a high-pressure air inlet pipe is provided on the hopper cover, and the high-pressure air inlet pipe is connected to the high-pressure air connector.

[0019] Preferably, the hopper and the hopper cover are in meshing contact in the form of a slot.

[0020] In summary, the present invention has the advantages of high automation, high safety and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of an automatic mixing and filling production line for liquid silicone described in the present invention.

[0022] Figure 2 Schematic diagram of the hybrid system.

[0023] Figure 3 Schematic diagram of the stirring mechanism.

[0024] Figure 4 for Figure 3 Schematic diagram of another orientation.

[0025] Figure 5 Schematic diagram of the mixing hopper translation mechanism and the mixing hopper.

[0026] Figure 6 Schematic diagram of the mixing hopper shifting mechanism.

[0027] Figure 7 Schematic diagram of the weighing mechanism.

[0028] Figure 8 Schematic diagram of the turntable system and mixing hopper.

[0029] Figure 9 for Figure 8 Schematic diagram of another orientation.

[0030] Figure 10 This is a schematic diagram of the glue mixing hopper.

[0031] Figure 11 Schematic diagram of the filling system.

[0032] Figure 12 Schematic diagram of the hopper transfer mechanism.

[0033] Figure 13 Schematic diagram of the glue injection mechanism.

[0034] Figure 14 Schematic diagram of the conveying system. DETAILED DESCRIPTION

[0035] The present invention will be described in further detail below with reference to the accompanying drawings. It should be understood that in the description of the present invention, the directions or positional relationships indicated by directional terms such as "upper" and "lower" and "top" and "bottom" are generally based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. Unless otherwise indicated, these directional terms do not indicate or imply that the devices or components referred to must have a specific direction or be constructed and operated in a specific direction, and therefore should not be construed as limiting the scope of protection of the present invention. The directional terms "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0036] like Figure 1-14 As shown, a liquid silicone automatic mixing and injection production line includes a mixing system 1, a turntable system 2, an injection system 3, a conveying system 4 and a feeding platform 5;

[0037] The mixing system includes a work platform 111, on which are mounted two hoppers 112 for holding liquid materials. The lower ends of the hoppers 112 are connected to liquid delivery pipelines via liquid discharge joints. The liquid delivery pipelines are connected to feed pipes of a stirring mechanism 114 via a peristaltic pump 113 fixed on the work platform. The stirring mechanism is fixed on the work platform, and a weighing mechanism 115 is provided below the stirring mechanism. A mixing hopper translation mechanism 116 and a mixing hopper shift mechanism 117 are also mounted on the work platform. A material blocking cylinder 118 is mounted on the work platform, and a material blocking plate 120 for blocking a feed pipe 119 is fixed to the piston rod of the material blocking cylinder.

[0038] The turntable system includes a rotating platform 211 and a turntable motor 212 and a cam divider 213 installed at the lower end of the rotating platform. A support ring for supporting the plastic mixing hopper 214 is provided on the rotating platform.

[0039] The injection system includes a mounting platform 311, on which a hopper transfer mechanism 312 and a glue injection mechanism 313 are mounted. The conveying system is located below the glue injection system.

[0040] The feeding platform 5 is arranged on one side of the working platform.

[0041] In this embodiment, the stirring mechanism includes a stirring motor 121 fixedly mounted on the working platform and a mixing hopper cover 122 fixedly mounted at the lower end of the working platform. The output shaft of the stirring motor is connected to a stirring paddle 124 through a reducer 123, and the stirring paddle is set downward through the mixing hopper cover.

[0042] In this embodiment, the mixing hopper translation mechanism includes a translation cylinder 125 and a linear slide 126 fixedly mounted on the lower end of the working platform. A slider is slidably fitted on the linear slide, and a translation base plate 127 is fixed on the slider. The piston rod of the translation cylinder is fixedly connected to the translation base plate. Two lifting cylinders 128 are fixed on the translation base plate. The piston rods of the lifting cylinders are arranged upward and are respectively fixedly mounted with mixing hopper support blocks 129.

[0043] In this embodiment, the mixing hopper shifting mechanism includes a shifting cylinder 130 fixedly mounted on a working platform, the shifting cylinder is used to drive the shifting platform 131 to move, a first grabbing cylinder 132 is fixed on the shifting platform, the piston rod of the first grabbing cylinder passes downward through the moving platform and is fixed with a first connecting plate, and two first grabbing claws 133 are fixed downward on the first connecting plate.

[0044] In this embodiment, the weighing mechanism includes a supporting platform 134, on which three first weighing sensors 135 are installed, on which a first lower positioning seat 136 is installed, on which a first positioning steel ball 137 is installed, and handles 138 are fixed on both sides of the mixing hopper. An upper positioning rod 139 is also fixed on the mixing hopper, and a positioning block 140 is fixed at the lower end of the upper positioning rod, and the positioning block has a positioning groove matching the first positioning steel ball; two first lifting cylinders 141 are fixed on the supporting platform, and the piston rod of the first lifting cylinder is set upward and fixed to the first mixing hopper support 142, and a discharge valve 143 is installed at the lower end of the mixing hopper.

[0045] In this embodiment, the hopper transfer mechanism includes a transfer cylinder 314 fixedly mounted on a mounting frame, and the transfer cylinder is used to drive the transfer platform 315 to move. A second grabbing cylinder 316 is fixed on the transfer platform, and the piston rod of the second grabbing cylinder passes downward through the transfer platform and is fixed with a second connecting plate, and the second connecting plate is fixed with two second grabbing claws 317 downward.

[0046] In this embodiment, the glue injection mechanism includes a glue injection base plate 318, on which three second weighing sensors 319 are fixedly installed, and a second positioning steel ball 321 is fixed on the second weighing sensor through a lower positioning rod 320, and the positioning groove on the glue mixing bowl matches the second positioning steel ball; two second lifting cylinders 322 are fixed on the support platform, and the piston rod of the second lifting cylinder is set upward and fixed with a second glue mixing bucket support 323.

[0047] In this embodiment, the conveying system includes a conveying line body 411, a support leg 412 is fixed to the lower end of the conveying line body, a conveying motor 413 is installed at the lower end of the conveying line body, the conveying line body includes a belt 414, a partition 415 is provided on the belt, and side guards 416 are installed on both sides of the belt, and the belt is used to place glue bottles 417.

[0048] In this embodiment, a hopper cover 6 is provided at the upper end of the hopper, a sealing ring groove is provided on the hopper, a sealing ring is placed in the sealing ring groove, a high-pressure air intake pipe 7 is provided on the hopper cover, and the high-pressure air intake pipe is connected to the high-pressure air joint.

[0049] In this embodiment, the hopper and the hopper cover are engaged with each other in the form of a slot.

[0050] Specifically:

[0051] Hybrid system:

[0052] The hopper is fixed to the work platform. A person stands on the loading platform, opens the hopper lid, adds liquid material to the hopper, and closes the lid. The high-pressure air inlet pipe is connected to the high-pressure air connector, and the liquid delivery line is connected to the liquid discharge connector. The hopper, lid, and sealing ring form a sealed structure. The hopper and lid engage in a slotted contact, supplemented by the sealing ring. A peristaltic pump is mounted on the work platform, and the liquid delivery line is connected to the feed pipe of the stirring mechanism through the peristaltic pump. The stirring mechanism is fixed to the work platform, with the weighing mechanism located directly below it. The hopper translation mechanism is mounted at the lower end of the work platform, and the hopper shift mechanism is mounted at the upper end.

[0053] The detailed working process is as follows: the lifting cylinder of the hopper translation mechanism extends, the mixing hopper is received by the mixing hopper support block, the translation cylinder retracts, the translation base plate and the mixing hopper are moved to the stirring station, the lifting cylinder retracts, the mixing hopper is placed on the first weighing sensor, the upper positioning rod of the mixing hopper forms a support structure with the first positioning steel ball and the first lower positioning seat, and the mixing hopper is automatically centered and weighed at the same time, and then the feeding system is started, and high-pressure air enters the hopper through the joint. Under the action of high-pressure air, the peristaltic pump pumps the liquid material through the conveying pipeline to the feed pipe. The liquid material is pumped into the mixing hopper, and the first weighing sensor reads the weight data in real time. When the set value is reached, the compressed air is stopped and the peristaltic pump stops. Stop pumping, the material blocking cylinder extends, pushing the material blocking plate to block the feed pipe, and then the first lifting cylinder extends, the handle of the mixing bucket is supported by the mixing bucket support to separate it from the first weighing sensor, and contacts the mixing bucket cover to form a sealing structure, the stirring motor starts, and the stirring paddle is driven to rotate through the reducer to mix the two liquid materials evenly. After the stirring is completed, the stirring motor stops rotating, the lifting cylinder extends, the lifting cylinder retracts, the mixing bucket falls to the mixing bucket support block, the translation cylinder extends, and under the guidance of the linear slide rail and the slider, the translation base plate and the mixing bucket are moved to the transfer station, the first grabbing cylinder descends, and the two first grabbing claws grab the handle of the bucket body, the shift cylinder starts, and the mixing bucket is moved to the next station.

[0054] Turntable system:

[0055] The hopper transfer mechanism moves the mixing hopper to the top of the turntable system. The first grabbing cylinder descends, the first grabbing claw releases, and the mixing hopper is placed on the support ring of the rotating platform. Then the turntable motor starts and drives the rotating platform to rotate a fixed angle through the cam divider, rotating the mixing hopper to the grabbing station of the filling system.

[0056] Filling system:

[0057] The turntable system rotates the mixing hopper to the bottom of the hopper transfer mechanism. The second grabbing cylinder descends, and the second grabbing claw grips the mixing hopper handle. The second grabbing cylinder then rises, and the transfer cylinder activates, moving the mixing hopper horizontally to the injection station. The injection mechanism's second lifting cylinder then extends, and the second grabbing cylinder descends. The second mixing hopper support holds the mixing hopper handle. The second grabbing claw releases, and the second lifting cylinder descends again, placing the mixing hopper onto the locating ball on the lower locating rod at the front end of the second load cell. The upper locating rod, the second locating ball, and the lower locating rod form a self-centering support structure. The second load cell reads the initial weight. When the plastic bottle on the conveyor system reaches the bottom of the plastic mixing hopper of the injection mechanism, the conveyor line pauses, the plastic mixing hopper's discharge valve opens, and the liquid silicone automatically flows into the bottle. The second load cell then reads the weight of the liquid silicone in real time. When the set value is reached, the discharge valve closes, and the conveyor line starts to transport the next plastic bottle to the injection station.

[0058] Conveying system:

[0059] The conveyor line is fixed by supporting legs, and the conveying motor is located below the conveyor line. The conveyor line adopts belt conveyor, partitions are provided on the belt, and ribs are installed on both sides of the belt. When the glue bottle is transported to the glue injection station, the conveyor line is paused and the glue injection mechanism injects glue into the glue bottle. After the glue injection is completed, the conveyor line moves one glue bottle position to inject glue into the next glue bottle.

[0060] Specifically, it also includes a PLC control system, which is connected to the electrical components of the mixing system, turntable system, filling system, and conveying system to control their actions.

[0061] Finally, it should be noted that various modifications and variations of the present invention may be made by those skilled in the art without departing from the spirit and scope of the present invention. Thus, the present invention is intended to include such modifications and variations as fall within the scope of the claims and their equivalents.

Claims

1. A liquid silicone automatic mixing and injection production line, characterized in that: Including mixing system, turntable system, filling system, conveying system and feeding platform; The mixing system includes a working platform, on which two hoppers for containing liquid materials are installed, the lower ends of the hoppers are connected to liquid delivery pipelines via liquid discharge joints, the liquid delivery pipelines are connected to the feed pipe of the stirring mechanism via a peristaltic pump fixed on the working platform, the stirring mechanism is fixed on the working platform, a weighing mechanism is provided below the stirring mechanism, and a mixing hopper translation mechanism and a mixing hopper shift mechanism are also installed on the working platform; a material blocking cylinder is installed on the working platform, and a material blocking plate for blocking the feed pipe is fixed to the piston rod of the material blocking cylinder; The turntable system includes a rotating platform, a turntable motor and a cam divider installed at the lower end of the rotating platform, and a support ring for supporting the mixing hopper is provided on the rotating platform; The injection system includes a mounting platform, on which a hopper transfer mechanism and a glue injection mechanism are mounted, and the conveying system is located below the glue injection system; The feeding platform is arranged on one side of the working platform; The mixing hopper translation mechanism includes a translation cylinder and a linear slide rail fixedly mounted at the lower end of the working platform, a slider slidably fitted on the linear slide rail, a translation base plate fixed on the slider, a piston rod of the translation cylinder fixedly connected to the translation base plate, two lifting cylinders fixed on the translation base plate, the piston rods of the lifting cylinders are upwardly arranged and respectively fixedly mounted with a mixing hopper support block; The mixing hopper shifting mechanism includes a shifting cylinder fixedly mounted on the working platform, the shifting cylinder is used to drive the shifting platform to move, a first grabbing cylinder is fixed on the shifting platform, the piston rod of the first grabbing cylinder passes downward through the moving platform and is fixed with a first connecting plate, and two first grabbing claws are fixed downward on the first connecting plate; The weighing mechanism includes a supporting platform, three first weighing sensors are installed on the supporting platform, a first lower positioning seat is installed on the first weighing sensor, a first positioning steel ball is installed on the first lower positioning seat, handles are fixed on both sides of the mixing hopper, an upper positioning rod is also fixed on the mixing hopper, a positioning block is fixed at the lower end of the upper positioning rod, and the positioning block has a positioning groove matching the first positioning steel ball; two first lifting cylinders are fixed on the supporting platform, the piston rod of the first lifting cylinder is set upward and fixed to the first mixing hopper support, and a discharge valve is installed at the lower end of the mixing hopper.

2. The liquid silicone automatic mixing and filling production line according to claim 1, characterized in that: The stirring mechanism includes a stirring motor fixedly mounted on the working platform and a mixing hopper cover fixedly mounted on the lower end of the working platform. The output shaft of the stirring motor is connected to a stirring paddle through a reducer, and the stirring paddle passes through the mixing hopper cover and is arranged downward.

3. The liquid silicone automatic mixing and injection production line according to claim 1, characterized in that: The hopper transfer mechanism includes a transfer cylinder fixedly mounted on a mounting frame, the transfer cylinder is used to drive the transfer platform to move, a second grabbing cylinder is fixed on the transfer platform, the piston rod of the second grabbing cylinder passes downward through the transfer platform and is fixed with a second connecting plate, and two second grabbing claws are fixed downward on the second connecting plate.

4. The liquid silicone automatic mixing and injection production line according to claim 3, characterized in that: The glue injection mechanism includes a glue injection base plate, three second weighing sensors are fixedly installed on the glue injection base plate, second positioning steel balls are fixed on the second weighing sensors through a lower positioning rod, and the positioning grooves on the glue mixing bowl match the second positioning steel balls; two second lifting cylinders are fixed on the support platform, and the piston rods of the second lifting cylinders are set upward and fixed with a second glue mixing bucket support.

5. The liquid silicone automatic mixing and injection production line according to claim 4, characterized in that: The conveying system includes a conveying line body, a support leg is fixed to the lower end of the conveying line body, a conveying motor is installed at the lower end of the conveying line body, the conveying line body includes a belt, a partition is provided on the belt, and ribs are installed on both sides of the belt. The belt is used to place glue bottles.

6. The liquid silicone automatic mixing and injection production line according to claim 5, characterized in that: A hopper cover is provided at the upper end of the hopper, a sealing ring groove is provided on the hopper, a sealing ring is placed in the sealing ring groove, a high-pressure air inlet pipe is provided on the hopper cover, and the high-pressure air inlet pipe is connected to the high-pressure air joint.

7. The liquid silicone automatic mixing and injection production line according to claim 6, characterized in that: The hopper and the hopper cover are in meshing contact in the form of a slot.

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